一个扩展的转录因子调节网络控制肝细胞身份
Julie Dubois-Chevalier1, Céline Gheeraert1, Alexandre Berthier1
1Univ. Lille, Inserm, CHU Lille, Institut Pasteur de Lille, U1011-EGID, Lille, France.
EMBO reports
|July 10, 2023
概括
肝细胞的身份依赖于不仅仅是核心转录因子 (TFs). 一个更广泛的网络,包括肝细胞身份 (Hep-ID) TFs,微调TF表达,并恢复脱离分化的细胞的身份.
科学领域:
- 分子生物学分子生物学
- 遗传学 是一个遗传学.
- 细胞生物学 细胞生物学
背景情况:
- 细胞身份主要由核心转录调节电路 (CoRC) 控制.
- 该CORC通常包括一组有限的相互连接的细胞特异转录因子 (TF).
- 在维持细胞身份方面,转录调节的复杂性是正在进行的研究领域.
研究的目的:
- 研究更广泛的转录调节网络,控制肝细胞身份,超出核心电路.
- 识别与肝细胞核心调节网络功能互动的非细胞特异性TFs.
- 阐明这些扩展的TF网络在维持和恢复肝细胞身份中的作用.
主要方法:
- 全球肝转录因子 (TF) 规则的采矿.
- 分析细胞特异性和非细胞特异性TF之间的功能互连.
- 研究TF在恒温状态和非分化肝细胞中的作用.
主要成果:
- 肝细胞身份由扩展的TF网络控制,包括非细胞特异性肝细胞身份 (Hep-ID) TFs.
- 肝炎IDCONNECT TFs与核心TFs表现出相互的转录调节.
- 肝脏IDCONNECT TFs微调核心TF表达,包括节奏模式,并且可以在非分化的肝细胞中重置核心TF表达.
结论:
- 肝细胞的身份是由一个复杂的调节网络维持的,它超出了核心的转录调节电路.
- 肝-IDCONNECT TFs在恒温调节和恢复肝细胞身份方面发挥着至关重要的作用.
- 这种扩展的网络为管理细胞特异性基因表达和身份维护的机制提供了新的见解.
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